package com.telecom.cms.dao;

import java.util.*;
import java.sql.ResultSet;
 
public interface Dao {
	
	/**
	 * @author  Ruyi.Luo
	 * 
	 * 
	 **/
	public int insert(String sql) throws Exception;
	
	public int delete(String sql) throws  Exception;
	
	public ResultSet select(String sql) throws  Exception;
	
	public int update(String sql) throws  Exception;
	
	public void closeconn() ;
	
}
